class_docstr: Unit tests for the evolve function
docstr: Test that the evolve function returns the `Evolution` operator when the input is
  a generic operator.
docstr_tok: ["Test","that","the","evolve","function","returns","the","`","Evolution","`","operator","when","the","input","is","a","generic","operator","."]
code: def test_evolve_returns_evolution_op(self):
      """Test that the evolve function returns the `Evolution` operator when the input is
      a generic operator."""
      op = qml.s_prod(2, qml.PauliX(0))
      final_op = qml.evolve(op)
      assert isinstance(final_op, Evolution)
  
file_path: pennylane/tests/ops/functions/test_evolve.py
imports: import warnings
  import pytest
  import pennylane
  from pennylane.ops import Evolution
  from pennylane.pulse import ParametrizedEvolution, ParametrizedHamiltonian
label_desc: Use image node_id 2 for calling the TestEvolveConstructor obj's underlying member method code with example usage: obj.test_evolve_returns_evolution_op() without return types